Nowadays people tend to google their symptoms and try to diagnose and treat their own selves. But in most occasions this has ended up with disasters and people getting unnecessarily panicked.
Here via this book William W Forgey has tried to educate common people on emergency medical management in a quite deep level. He has tried to make a person able to provide medical care in an emergency situation without any help from the professionals.
Though I agree that having medical knowledge can be useful, this can worsen the scenario by a non-profesional trying to play the hero. What do you think?
A simple example:
(Location 768 - Kindle version)In case of possible neck injury, the airway can be opened by lifting the jaw without moving the neck.
This is the only mentioning about the important, yet difficult, and has to be practiced and precised, jaw-thrust-maneuver. Trying to apply this with no or inadequate practice will clearly put the victim in more danger.